highaltitude.log.20110203

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[07:39] <earthshine> morning
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[10:05] <zwifilms> Evening all!
[10:05] <zwifilms> juxta you about?
[10:13] <fsphil> there's an FT-790R MK2 on ebay atm
[10:15] <juxta> hi zwifilms
[10:15] <juxta> I'm back in now
[10:16] <zwifilms> two secs - on phone to 5zm
[10:17] <juxta> okay
[10:17] <juxta> Darkside, shenki, you guys around?
[10:36] <zwifilms> juxta - hi there - back again
[10:40] <zwifilms> just wondering if you are all set for tomorrow? zsn mentioned you guys were looking at a 9am start too - matt and I will be about then too - will call on 9900
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[11:07] <shenki> juxta: im here, Darkside is at work tonight
[11:09] <juxta> oh right - can I get that radio from you?
[11:11] <zwifilms> hi juxta, shenki - - juxta - all sorted for tomorrow? I have the videos loaded on the laptop
[11:11] <juxta> excellent
[11:11] <juxta> I pm'd you a little while ago
[11:13] <shenki> juxta: yep. are you coming past henley any time soon? or the city in the morning?
[11:13] <shenki> im still in the city atm
[11:13] <juxta> I dont think so - I'll just grab it when we're back I guess :)
[11:13] <juxta> do you have the other stuff too?
[11:14] <juxta> or has Mark still got all that?
[11:14] <shenki> ok. would you like itbeforeyou go? i can drive up if it's important
[11:14] <juxta> we should be able to get by :)
[11:14] <shenki> ive got the payloadand the reflector
[11:14] <juxta> okay
[11:14] <juxta> did that chap keep the balloon?
[11:15] <shenki> yeah. you'l have to talk to mark aboutthat one, i hadvery little to do with it
[11:21] <Laurenceb> http://uk.farnell.com/invensense/itg-3200/ic-gyro-tri-axis-2000-deg-s/dp/1858279?Ntt=itg-3200
[11:21] <Laurenceb> ^oh yeah
[11:27] <SpeedEvil> Still awaiting delivery
[11:27] Action: SpeedEvil looks at height.
[11:29] <SpeedEvil> Damn - that would almost fit in a microSD
[11:33] <Laurenceb> you can order it elsewhere
[11:34] <Laurenceb> also the mpu version has better gyros
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[11:44] <Elwell> http://invensense.com/mems/gyro/itg3200.html
[11:44] <Elwell> does look shiny though
[11:44] <Elwell> http://invensense.com/mems/gyro/mpu6000.html mmmmmmm
[11:48] <fsphil> gyro porn?
[11:48] <GW8RAK> lol
[11:49] <Elwell> fsphil: depends on your orientation I guess
[11:49] Action: Elwell gets coat
[11:49] <fsphil> classic
[11:49] <GW8RAK> No need to get your coat for that one
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[12:22] <Laurenceb> im going to order some samples
[12:25] <Laurenceb> Elwell: http://i.imgur.com/r9fp7.png
[12:26] <Laurenceb> for that board... which i may eventually populate
[12:26] <Laurenceb> really needs a v2 with ublox6
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[12:29] <SpeedEvil> :)
[12:31] <Darkside> cripe thats dense
[12:33] <Laurenceb> need to get my reflow oven built
[12:33] <Laurenceb> too busy with work :(
[12:33] Action: Laurenceb is unsure if anyone has actually got a fsa03 to work
[12:33] <Laurenceb> also dual antenni with ufl connectors - taoglas thin film antenna ftw
[12:33] <Laurenceb> sma connectors a big and heavy anyway
[12:33] <Darkside> what do yo umean got a FSA03 to work?
[12:41] <fsphil> I used an fsa03 on my last flight -- and apart from getting lost it worked well ;-)
[12:41] <Laurenceb> ok
[12:42] <fsphil> the gps worked fine
[12:42] <Laurenceb> yeah it looks good spec wise but som many people have had issues
[12:42] <fsphil> I think you just have to be careful when handling them
[12:42] <Laurenceb> i suspect its power supply issues
[12:42] <Laurenceb> my previous ublox5 receivers have been very sensitive to power supply
[12:42] <fsphil> most issues I've heard of are because of the fragile antenna
[12:43] <Darkside> oh yes
[12:43] <Darkside> shenki broke one
[12:44] <Darkside> then again it was dropped onto concrete from about a metre
[12:44] <Laurenceb> lmao
[12:44] <Laurenceb> yeah not the most suitable for uav
[12:45] <Laurenceb> also it means theres only one way to mount the board
[12:45] <Laurenceb> on v2 ill leave the cutout and add a ufl connector with ublox6
[12:45] <fsphil> the gpsbee is a tad lighter and seems to be a bit hardier
[12:46] <Darkside> i want to try a venus chipset sometie
[12:46] <Darkside> sometime*
[12:46] <Darkside> apparently they are very good
[12:46] <Laurenceb> i think its possible to do a set of pads that can be used for ufl and a sarantel ant
[12:46] <Laurenceb> Darkside: not for dynamic performance
[12:47] <Darkside> hrm
[12:47] <Darkside> the people i know that use them, use them on rockets
[12:48] <Laurenceb> ublox is very good in my experience
[12:48] <Laurenceb> cusf used venus and it wasnt good
[12:48] <fsphil> the venus isn't good at altitude
[12:48] <Darkside> ah yes
[12:48] <Darkside> i think it has a 18km cap, right?
[12:48] <Laurenceb> cant remeber
[12:48] <fsphil> which is a shame as I got one originally, and have never used it
[12:48] <shenki> the ublox worked well on my rocket :)
[12:49] <Laurenceb> did it retain lock during launch?
[12:49] <Darkside> shenki flew a ublox on a rocket last week
[12:49] <Darkside> it maintained lcok
[12:49] <Darkside> lock*
[12:49] <Laurenceb> wow
[12:49] <Laurenceb> could have just been a fluke...
[12:49] <Laurenceb> did you modify any settings?
[12:50] <Darkside> nope
[12:50] <shenki> nope
[12:50] <Darkside> it was set up the same as for balloon flights
[12:50] <shenki> https://lh5.googleusercontent.com/_wgYzFL0S-Rk/TUgVVX3TSZI/AAAAAAAAQDA/c1-XKN4NMFI/s800/tim-rocket-lca-flight.jpg
[12:51] <Laurenceb> interesting
[12:51] <Laurenceb> in my experience ublox5 is very good
[12:51] <Laurenceb> also lots of the uav people found the same
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[12:58] <NigeyS> http://www.bbc.co.uk/news/technology-12335957
[12:58] <NigeyS> cheats!
[12:58] <NigeyS> motherboard and psu were pre-installed
[13:01] <SpeedEvil> Also - they diddn't have to populate the motherboard.
[13:02] <NigeyS> pfff, epic fail
[13:03] <SpeedEvil> 'here is a pile of 7400, a wirewrap tool, and an 8088 ASM guide, and an rs232 connector going to a modem. First to connect to the internet wins.'
[13:04] <NigeyS> haha :D !
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[13:09] <Laurenceb> that is possibly the stupidest thing ever
[13:10] <SpeedEvil> It's raising awareness of the charity - so it's not really.
[13:10] <Laurenceb> next up: Olympic pcb layout
[13:10] <SpeedEvil> But yes.
[13:13] <Laurenceb> they have artistic kayak dancing so...
[13:16] <fsphil> the olympics is such a waste of resources
[13:16] <NigeyS> i'm sure other uses could be found for £12bn !
[13:17] <Elwell> would buy a lot of He
[13:17] <NigeyS> oo yush! many hab flights! lol
[13:18] <fsphil> could buy a couple of good rocket launches
[13:18] <fsphil> first amateur satellite to orbit the moon!
[13:19] <NigeyS> mmm 12bn .. would get you to mars easily ;)
[13:19] <fsphil> oor a solar HAB --- floating above the surface of the sun
[13:19] <NigeyS> toasty!
[13:20] <fsphil> though a balloon wouldn't work too well there, would be more of a glider
[13:20] <SpeedEvil> A liquid osmium shell, held in place by maglev.
[13:22] <Elwell> or alternatively, hire a couple of consultants for a week.
[13:22] <Darkside> hrm, so you cant get spercal mylar balloons?
[13:22] <Darkside> i.e. something you could use for a radar target
[13:22] <Elwell> oh, are we spent already
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[13:23] <NigeyS> totally spent Elwell
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[13:26] <fsphil> does the balloon have to be the radar target Darkside? could hang something from a regular balloon
[13:35] <SpeedEvil> A few strips of foil, and some cardboard
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[14:02] <n0sebl33d> Hi all
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[14:03] <m1x10> Hi all
[14:09] Zuph (~bradluyst@lutz310-02.loutz.louisville.edu) joined #highaltitude.
[14:10] <m1x10> http://www.shef.ac.uk/mediacentre/2011/1834-video-earth-edge-space.html
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[14:10] <m1x10> who are those guys?
[14:16] <NigeyS> hey m1x10
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[14:17] <Elevator> I need asistance with a little test. Could someone please give me their phone number, so that I could call them to check if my caller ID is hidden or not?
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[14:19] <m1x10> Hi NigeyS
[14:19] <Elevator> Is there nobody here wanting to help me?
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[14:30] <Laurenceb> are you a member of the nigerian royal family?
[14:30] <NigeyS> lol
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[14:53] <Laurenceb> http://rcexplorer.se/projects/TriV2/TriV2.html
[14:53] <Laurenceb> interesting
[14:53] <Laurenceb> there seems to be fewer people working on tricopers than quadcopters
[14:55] <fsphil> they're not tri-ing hard enough
[14:55] <m1x10> HI
[14:55] <m1x10> I get: $PUBX,00,145453.00,4038.96567,N,02256.64338,E,304.947,D3,47,16,1.013,7.01.4*4C
[14:56] <m1x10> apparently im loosing characters !
[14:56] <Laurenceb> http://rcexplorer.se/reviews/domaine/domeine.html
[14:56] <Laurenceb> haha wow
[14:56] <Laurenceb> thats brilliant
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[14:57] <Laurenceb> most epic holiday destination ever
[14:57] <Laurenceb> http://rcexplorer.se/reviews/domaine/files/page60-domainefpv.jpg
[15:26] <m1x10> can someone help me with this C++ compiler error?
[15:26] <m1x10> http://imagebin.org/135972
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[16:09] <Laurenceb> http://www.bbc.co.uk/news/world-middle-east-11937285
[16:13] <NigeyS> lol oh dear
[16:13] <fsphil> dunno, the antennas sticking out of their heads where a bit suspicious...
[16:14] <fsphil> holy crap it's windy outside
[16:14] <fsphil> the roof is making weird noises
[16:15] <NigeyS> just a few slates blowing off dont worry dude ;)
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[16:31] <SpeedEvil> Windy here too.
[16:31] <SpeedEvil> I don't think much has blown off here.
[16:34] <griffonbot> Received email: "Matthew Beddow" <matt.beddow@gmail.com> "[UKHAS] ITV Daybreak - Students in Space"
[16:36] <fsphil> just hope my hf vertical is still vertical
[16:37] <fsphil> I'm still in the office -- was going to take it down this-morning but I didn't ge ttime
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[16:38] <fsphil> hmm.. ITV are as good at websites as they are at TV
[16:39] <NigeyS> lmao its dire isnt it
[16:40] <NigeyS> woops someone shouldve told them about the cocom limits
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[17:04] <eroomde> where did they launch from?>
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[17:06] <NigeyS> not sure
[17:06] <eroomde> hope they had a notam anyhoo
[17:07] <NigeyS> yeah, not something to be taken lightly.
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[17:09] <eroomde> ls
[17:09] <eroomde> too many terminals spoiling my broth
[17:09] <NigeyS> hehe
[17:10] <eroomde> hey, could someone mentiopn my name in about 5s?
[17:11] <fsphil> eroomde, eroomde, eroomde
[17:11] <eroomde> woo
[17:11] <eroomde> thanks
[17:11] <SpeedEvil> eroomde:
[17:11] <eroomde> osx terminal finally shows some activity when i get a mention
[17:12] <jonsowman> eroomde: how?
[17:12] <SpeedEvil> :)
[17:12] <eroomde> well, iterm :)
[17:13] <jonsowman> when you say activity... what does it do?
[17:13] <eroomde> changes colour
[17:14] <jonsowman> I've never managed to get iterm to do anything on mention
[17:14] <Dan-K2VOL> you guys using a commandline irc client?
[17:14] <jonsowman> Dan-K2VOL: irssi
[17:14] <eroomde> mmhmm
[17:15] <eroomde> oh Dan-K2VOL : the mass flow controller arrived today
[17:15] <Dan-K2VOL> Interesting, i'm using adium
[17:15] <eroomde> it's pretty sweet - will do a write-up
[17:15] <Dan-K2VOL> Nice ed
[17:15] <Dan-K2VOL> love to see how that works out
[17:15] <eroomde> it's not just a meter, it also controls, so you can tell it how many litres of helium to put in and then go off and do something else
[17:15] <Randomskk> :o
[17:15] <Randomskk> that's very cool
[17:16] <jonsowman> have to see this
[17:16] <Dan-K2VOL> Hell thats awesome
[17:16] <eroomde> jonsowman: on that point, we should add to the calc an output in 'litres normal'
[17:16] Action: jonsowman pokes Randomskk
[17:16] <eroomde> in addition to free lift
[17:16] <SpeedEvil> eroomde: that is neat.
[17:16] <Randomskk> 'normal'?
[17:16] <Randomskk> it already does litres iirc
[17:16] <SpeedEvil> eroomde: probably ideally with a correction in millibars
[17:16] <eroomde> litres normal being sea level at 0 celcius
[17:16] <Randomskk> ugh
[17:16] <Randomskk> it does litres
[17:16] <Dan-K2VOL> How many £
[17:16] <Randomskk> I wonder at what condition it does them
[17:17] <eroomde> a blag
[17:17] <eroomde> sp zero
[17:17] <eroomde> but it's a permenant loan, they say
[17:17] <eroomde> i think it's about £3k to buy
[17:17] <Dan-K2VOL> yikes
[17:17] <Dan-K2VOL> you're fortunate fellows
[17:17] <eroomde> lots of calibration goes into them, and it's an amazing bit of gleaming stainless steel with rs232 ports and gas ports
[17:17] <eroomde> it weight a fair bit!
[17:20] <eroomde> http://www.flickr.com/photos/cuspaceflight/5413790536/
[17:20] <eroomde> the one on the right
[17:21] <eroomde> the bit on the left, up to the join, is the flow meter, the bit on the right is the valve
[17:22] <jonsowman> shiny
[17:22] <eroomde> and the rs232 port is for comms. There's pc spftware which has lots of bells and whistles but i think we'll integrate it into a flight case with a numberpad and 7-seg displays and a simple microcontroller
[17:22] <SpeedEvil> Indeed.
[17:23] <eroomde> it's good for up to 1500L/min, apparently
[17:23] <eroomde> i don't imagine we'll run it that high
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[17:45] <MrCraig> hi all
[17:45] <MrCraig> Laurenceb - apologies for skipping out almost mid convo yesterday
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[18:28] <m1x10> Gnite people
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[18:28] <MrCraig> night m1x10
[18:30] <Laurenceb_> hi all
[18:30] <Laurenceb_> n00b question, if i ssh into a remote machine and can see my processes running
[18:30] <Laurenceb_> say one of them is a script running in a terminal
[18:31] <Laurenceb_> is there any way to interact with it?
[18:31] <MrCraig> "ps -e" get running processes. I've used a package called screen to start processes and then re-attach to them later to interact with them.
[18:33] <MrCraig> the way it works is, you type screen to enter a new session, start your script, I think Ctrl+A then D to detatch from that process and finally "screen -a" to reattach at a later time
[18:34] <Laurenceb_> hmm
[18:34] <Laurenceb_> so if i login now can i do that?
[18:35] <NigeyS> re-run the script laurence
[18:36] <Laurenceb_> cant
[18:36] <MrCraig> I've assumed you have screen installed - just type "screen" to see if it's recognised, if not, depending on your distro - "apt-get install screen" or "yum install screen" or "emerge screen"
[18:36] <NigeyS> bbut do screen <script> then you can interact
[18:36] <Laurenceb_> it takes a few weeks to run
[18:36] <NigeyS> ahh dam :|
[18:36] <Laurenceb_> i want to monitor it remotely
[18:36] <MrCraig> oh - it's running already
[18:37] <Laurenceb_> yes
[18:38] <Laurenceb_> does screen pid work?
[18:38] <NigeyS> only to reattach to a running screen
[18:38] <Laurenceb_> ah
[18:39] <NigeyS> screen -r <pid> if running more than 1 instance
[18:39] <Hibby> screen -Dr if it's in use elsewhere - detaches and reattaches in your session
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[18:39] <NigeyS> fsphil, is your Vertical still vertical? :p
[18:40] <MrCraig> but if the script is already running and not in a screen, I've no clue how you'd attach to that, and I'd be nervous to try it too for the odds of it killing the process
[18:40] <fsphil> hehe, it was a 45degreeical
[18:40] <fsphil> I took it down, have it lying on the ground
[18:40] <NigeyS> lol not damaged i hope
[18:40] <Laurenceb_> MrCraig: ok
[18:41] <fsphil> one little wire got bend out of shape, but nothing much
[18:41] <NigeyS> ahh cool
[18:42] <NigeyS> laurenceb depending on what you want to do you could run strace on the pid .. but id be careful with it
[18:42] <Laurenceb_> yeah
[18:42] <NigeyS> actually ptrace would be better, dont think itd kill the script, but i wouldnt guarantee it
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[18:44] <NigeyS> hi mattltm
[18:44] <mattltm> Hey all :)
[18:44] <NigeyS> wre you looking for a reciever to monitor your balloon ?
[18:44] <mattltm> Nope. I have a Yaesu FT-857 sitting here :)
[18:45] <NigeyS> ahh oki, mustve been someone else .. and grr im jealous of that 857 :P
[18:45] <mattltm> I love it. Took part in the 144 UKAC on tuseday.
[18:45] <mattltm> First contest I have done.
[18:45] <mattltm> Managed 2 contacts :/
[18:45] <Colin-G8TMV> beware it's adictive
[18:46] <Colin-G8TMV> what antenna?
[18:46] <fsphil> better than my last contest mattltm :p
[18:46] <mattltm> 4 ele yagi
[18:46] <Colin-G8TMV> and I hope you uploaded your log
[18:46] <fsphil> same here, 4 el but I only managed one
[18:46] <mattltm> but i am only 3oM ASL
[18:46] <Colin-G8TMV> horizontal I hope?
[18:46] <mattltm> yup
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[18:46] <mattltm> yagi in the loft
[18:46] <Colin-G8TMV> you should have managed more contacts than that
[18:47] <mattltm> and im halfway down the south side of a 70M hill
[18:47] <Colin-G8TMV> where do you live?
[18:47] <mattltm> In kent. My only clear los is to maidstone :)
[18:47] <mattltm> thats it.
[18:48] <Colin-G8TMV> Hmm... yeah, that wouldn't help - you need to go out portable then
[18:48] <mattltm> Managed 1 contact in essex and one on the isle of sheppy
[18:48] <mattltm> Im going up to the canvy island rally on Sat on the lookout for a beam to go /p with :)
[18:48] <Colin-G8TMV> operate from a car from the top of a hill
[18:48] <fsphil> in my case I ran out of battery power :)
[18:49] <mattltm> The bluebell hill site is 200M ASL with nice clear LOS in all directions. Going there next month.
[18:49] <Colin-G8TMV> get a SLAB - there will be people selling them at the rally
[18:49] <mattltm> with a 12M SCAM mast :)
[18:49] <Colin-G8TMV> get a 70cns beam as well (or a dual band one)
[18:50] <mattltm> I have 4 x 7Ah SLAB's for SOTA work.
[18:50] <Colin-G8TMV> yeah, a scam is what I'm after for my garden
[18:50] <mattltm> I love my SCAM. Used to use them in a previous job. There is/was a SCAM 21 on ebay yesterday.
[18:50] <mattltm> 21M of pump up delight!
[18:51] <fsphil> SCAM ... sounds like a scam
[18:51] <Colin-G8TMV> so I saw, we (the camb-hams) have one in a van see http://www.camb-hams.com/flossie
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[18:52] <Colin-G8TMV> SCAM == Self Contained Army Mast
[18:52] <mattltm> Yup. I was looking at flossie. Found it via a google search for UKAC.
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[18:52] <MrCraig> has anyone used yenka to design / simulate pcb's? any review on it's worthiness?
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[18:52] <Colin-G8TMV> <g> we do quite well with her even though our highest ground around here is only 70m
[18:55] <mattltm> Did you do the UKAC on tuseday Colin?
[18:55] <Colin-G8TMV> No, we missed this week, I'm normally out with the camb-hams team in Flossie operating as G3PYE/P
[18:56] <Colin-G8TMV> we do it most weeks
[18:56] <mattltm> Ah. I'll keep an eye out for you.
[18:56] <Colin-G8TMV> what's your call?
[18:58] <mattltm> M6MDP
[18:59] <mattltm> Doing my E20 at the mo.
[18:59] <Colin-G8TMV> Ah, so you are limited to 10W - that explains some of your problem too
[18:59] <mattltm> Yup.
[18:59] <mattltm> Back in a bit. Dinner time :)
[19:02] <fsphil> I actually forgot about the contest, was going to try and double by score to 2
[19:03] <Colin-G8TMV> well it's points per Km so hopefully you could do better than that
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[19:06] <fsphil> my attic isn't really good for the 2m yagi, it's impossible to turn it
[19:06] <fsphil> will have to try from a better spot
[19:07] <NigeyS> could i put mine in the attick phil? :|
[19:07] <fsphil> I was listening to the guy I made contact with, and he was hearing people from some pretty impressive distances
[19:08] <fsphil> you could but the roof tiles will probably attenuate the signal a bit
[19:08] <NigeyS> ach dam, out the garden on the shed roof it is then lol
[19:08] <fsphil> I keep mine in the shed for when I need to use them
[19:09] <fsphil> too many tall building to bother putting them on the roof here
[19:09] <NigeyS> i would .. but it kinda has no door, i havent got round to building the doorframe yet
[19:09] <fsphil> your shed has no door?
[19:10] <NigeyS> yuhuh
[19:10] <fsphil> nice
[19:10] <NigeyS> or door frame..
[19:10] <NigeyS> has a nice new roof though
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[19:15] <Laurenceb_> http://www.rcexplorer.se/projects/tricopter/tricopter.html
[19:15] <Laurenceb_> interesting, veyr simple
[19:24] <NigeyS> very funky!
[19:24] <NigeyS> hey RocketBoy
[19:25] <RocketBoy> yo ho ho
[19:25] <NigeyS> how's you ?
[19:27] <RocketBoy> fine - just playing with a SuperPressure balloon float calculator - seems to work
[19:29] <NigeyS> ohhh, thats good to hear
[19:30] <MrCraig> Hi RocketBoy
[19:31] <RocketBoy> hi
[19:31] <MrCraig> You used PIC's for flight computers?
[19:32] <RocketBoy> yep - mostly PIC18F2680s
[19:32] <RocketBoy> cos I got a load free when microchip were giving free samples in the UK
[19:33] <MrCraig> I'm planning to use 16F627/8 but was hoping you might have some advice both for interfacing the ntx2 and / or software
[19:33] <Laurenceb_> http://www.youtube.com/watch?v=S99O7sKcbBE
[19:34] <Laurenceb_> ^epic
[19:34] <Laurenceb_> MrCraig: what about compiler?
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[19:34] <MrCraig> I have the HiTech C compiler
[19:34] <MrCraig> with MPLAB
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[19:35] <MrCraig> The 16F has a built in uart / usart I hope will directly drive the ntx2 input, but I've not tried wiring it yet.
[19:36] <griffonbot> Received email: Davejay <dave.jones@davejay.co.uk> "[UKHAS] Re: ITV Daybreak - Students in Space"
[19:36] <MrCraig> MrCraig slams a 60 lb unix manual on RocketBoy 's head. That gotta hurt... but then again... where there's no sense... there's no feeling!
[19:36] <MrCraig> omg- sorry
[19:37] <MrCraig> lol clicked the wrong menu option
[19:37] <Laurenceb_> lmao wtf
[19:37] <MrCraig> lol - it's an old but free irc client, I was looking for / msg
[19:38] <Laurenceb_> it ways a lot that theres a menu option to say that
[19:39] <Laurenceb_> this daybreak business, what is it about?
[19:39] Action: Laurenceb_ seems to be missing the mail list emails
[19:41] <Laurenceb_> oh no its Chris Rose
[19:41] <Laurenceb_> his dad my dentist ffs
[19:42] <RocketBoy> MrCraig: the 18F chips are bigger (my code has already outgrown 32K program) and there is microchip C compiler support - the 2680 has an onboard usart and SPI, ADC, PWM ...
[19:42] <RocketBoy> but i really shoould move to somthing better
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[19:43] <MrCraig> I need only gps -> ntx2 from the controller. Not going for anything more ambitious than that at this point, do you suppose the 16F or 18F would be enough for that?
[19:44] <RocketBoy> the way I generate the serial data for the NTX2 is using software and a timer interrupt - I save the 1 USART on the 2680 for the GPS
[19:45] <Laurenceb_> did they get a NOTAM? (Chris rose and co)
[19:45] <RocketBoy> that could be (has been) done with about 1K on a 16F84
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[19:47] <MrCraig> the 16F has only 1 usart though?
[19:47] <RocketBoy> I think I'll drop the sheffield guys a line and ask them to put the fact you have to get a CAA permit on their website - so we don't get loads of people thinking that they can fly wothout
[19:47] <Laurenceb_> yeah
[19:48] <RocketBoy> I don't think ythe 16F84 evan has that - but people used to write software USARTs
[19:48] <Laurenceb_> i often see him around - he lives just down the road, so ill pass the message on if i see him
[19:48] <MrCraig> ahh I see
[19:48] <RocketBoy> I have their email somwhere
[19:49] <MrCraig> I'll msg you mine incase you have info that I can use...
[19:49] <RocketBoy> sure
[19:50] <Laurenceb_> the photos are pretty impressive
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[19:50] <Laurenceb_> any ideas what envelope they used?
[19:53] <RocketBoy> i do
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[19:59] <RocketBoy> whats the link to the sheffield unit launch again?
[19:59] <RocketBoy> uni
[20:01] <NigeyS> http://www.shef.ac.uk/mediacentre/2011/1834-video-earth-edge-space.html
[20:02] <RocketBoy> tnx
[20:03] <Laurenceb_> wonder if we can work out the land below
[20:04] <Laurenceb_> it looks like later afternoon, so looking south east
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[20:04] nigey (~EcEnTiAl@cpc5-cdif12-2-0-cust155.5-1.cable.virginmedia.com) joined #highaltitude.
[20:04] Nick change: nigey -> Nigey
[20:05] <Laurenceb_> Dec 2011 eh
[20:05] <fsphil> December 2011 .. it's from the FUTURE!
[20:05] <Nigey> woops..lol
[20:06] <Laurenceb_> the stop motion is so awesome
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[20:07] Nick change: SpikeUK_ -> SpikeUK
[20:07] <fsphil> ooh, the predictor
[20:07] <Laurenceb_> heh
[20:07] <Laurenceb_> i was about to say that
[20:08] <Laurenceb_> that launch location looks familiar
[20:08] <Laurenceb_> - about 100m away from where i am now
[20:09] <fsphil> a hab project under your very nose :)
[20:10] <Nigey> literally
[20:11] <Laurenceb_> nice aerial shots of my house :P
[20:11] <Laurenceb_> well its a bit mpeged
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[20:13] <Laurenceb_> 6:50 looks like rutland resevoir
[20:19] <fsphil> the video is well put together
[20:21] <Laurenceb_> yeah, i like the spot motion duck tape
[20:21] <Laurenceb_> *stop
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[20:22] <MrCraig> bt have a lot to answer for.
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[20:31] <Laurenceb_> I know where im going on holiday - http://rcexplorer.se/reviews/domaine/domeine.html
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[20:51] <mattltm> Im back :)
[20:56] <MrCraig> wb
[20:56] <fsphil> run away
[20:57] <MrCraig> considering blowing up a 6ft balloon in my living room for giggles
[21:01] <MrCraig> These balloons have a shelf life right? can I check them from the N.S.N numbers or something?
[21:02] <fsphil> I think they're good for a year or so
[21:02] <MrCraig> I bought from ebay - so don't know how old they are
[21:02] <fsphil> aah
[21:05] <MrCraig> :-/ well I have two - so there's a backup if one goes bust launch day
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[21:09] <RocketBoy> http://www.foxnews.com/scitech/2011/02/03/project-space-planes-paper-airplanes-soar/
[21:10] <RocketBoy> "The world record paper plane travels 12 feet across the ground for every foot it drops," he noted. "So it's not unreasonable to think one might travel to America."
[21:10] <RocketBoy> yeah right
[21:13] <Nigey> since when was canada "remote" ? :|
[21:13] <MrCraig> they attaching it to a 747?]
[21:13] <MrCraig> oh, it's fox news - nvm.
[21:14] <fsphil> lol
[21:14] <Nigey> lol
[21:14] <Nigey> hey juxta
[21:14] <juxta> hi Nigey
[21:15] <juxta> RocketBoy, yeah, they were claiming they'd been found in australia too
[21:16] <RocketBoy> well - i think they actually claim the reports need to be confirmed on the project space planes site
[21:17] <Upu> project little the countryside within 10 miles of the launch more like
[21:17] <Upu> litter
[21:19] <RocketBoy> well my guess is a dispersal of a few km radius - somewhere down wind of the release point
[21:19] <natrium42> o/
[21:19] <RocketBoy> but we will see - its all part or
[21:19] <RocketBoy> of the fun
[21:23] <griffonbot> Received email: discoross <rpanderson@gmail.com> "[UKHAS] detect balloon burst?"
[21:23] <MrCraig> is there a fraternity style initiation required to get on that mailing list?
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[21:24] <Nigey> nope, just sign up
[21:24] <Nigey> http://groups.google.com/group/ukhas
[21:24] <MrCraig> ty
[21:24] <Nigey> :)
[21:25] <natrium42> lol
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[21:27] <mattltm> fsphil: Did you get Hadie back yet?
[21:27] <fsphil> not yet mattltm -- it seems to have landed in a farm, not much chance of someone walking by it
[21:28] <mattltm> Shame. Bee good to know what the problem was.
[21:28] <fsphil> yea!
[21:29] <fsphil> I'm betting the main element broke off
[21:29] <natrium42> gonna do a launch tomorrow
[21:29] <Nigey> :o
[21:29] <fsphil> cool!
[21:30] <Nigey> fsphil, do you have the co-ordinates of hadies location ?
[21:30] <fsphil> Nigey, roughly yea
[21:35] <natrium42> ok, maybe i should start building a tracker...
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[21:35] <juxta> heya natrium42
[21:35] <juxta> what're you flying tomorrow? :)
[21:35] <natrium42> hi juxta, my brother is launching a go pro hd camera
[21:35] <natrium42> tomorrow
[21:35] <juxta> nice! :)
[21:36] <juxta> same launch site as last time?
[21:36] <natrium42> i am responsible for tracking
[21:36] <natrium42> yeah
[21:36] <Nigey> oo some nice video footage :D
[21:36] <natrium42> i was planning to just use SPOT2
[21:36] <natrium42> but maybe i can slap a tracker together quickly, with a NTX2 module
[21:36] <natrium42> the problem is antenna for radio
[21:36] <natrium42> no 434MHz yagi...
[21:36] <natrium42> guess a whip will do
[21:37] <natrium42> http://habhub.org/predict/#!/uuid=8648821615012af21dd2acaa316b3f2a820b9457
[21:37] <juxta> I'd gladly lend you one if there were not thousands of KM between us :)
[21:38] <natrium42> :D
[21:38] <juxta> that looks good
[21:38] <natrium42> i could build a moxon
[21:38] <juxta> wow, 7m/s
[21:38] <juxta> that's quite fast
[21:38] <natrium42> otherwise it ends up in toronto
[21:38] <juxta> yeah
[21:38] <natrium42> he has to launch it soon
[21:38] <natrium42> project for some course he is taking
[21:38] <juxta> that would be less than ideal
[21:39] <juxta> oh right
[21:39] <natrium42> due tuesday
[21:39] <Nigey> got alot of little lakes havent you !
[21:39] <natrium42> oh yes
[21:40] <natrium42> it almost feels like we're on an island
[21:40] <Nigey> paddle boat and bathers for recovery just in case? :P
[21:40] <natrium42> well, hopefully the little ones are frozen
[21:40] <Nigey> oh yeah course, its still stupidly cold over there
[21:41] <juxta> look at all our lakes: http://maps.google.com.au/?ie=UTF8&ll=-30.287532,137.351074&spn=6.372931,10.810547&z=7
[21:41] <juxta> then look at satellite view :(
[21:42] <natrium42> haha
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[21:44] <natrium42> juxta: what antenna do you use on the payload?
[21:44] <natrium42> just 4 aerials from shielding and a lengh of wire from the core?
[21:45] <natrium42> 1/4 wave?
[21:45] <juxta> I use a 1/4 wave with groundplane, which I make out of flexible braided steel cable so that it doesnt poke eyes out/get bent
[21:45] <natrium42> ah
[21:45] <juxta> so yeah, the 1 driven element + 4 radials
[21:46] <natrium42> no impedance matching?
[21:46] <juxta> nah I dont bother :)
[21:46] <natrium42> :)
[21:46] <juxta> still seems to work just fine
[21:46] <juxta> i made something similar for rx and put it on a network analyser, it was okay-ish
[21:47] <juxta> works great for rx though :D
[21:48] <natrium42> kk, easy then :)
[21:50] <juxta> natrium42, got a sec?
[21:50] <natrium42> yep
[21:50] <juxta> was just curious re all the fuss on UBB in Canada (though I hear the descision got overturned)
[21:51] <griffonbot> Received email: Florian Bruhin <me@the-compiler.org> "Re: [UKHAS] detect balloon burst?"
[21:51] <SpeedEvil> If the groundplane is pointed down, you may not need matching
[21:52] <natrium42> well, the company Bell owns all DSL infrastructure so the smaller ISPs go through them
[21:52] <natrium42> so Bell just got our communications regulatory body to jack prices up
[21:53] Action: natrium42 has cable anyway :P
[21:53] <juxta> ah, that was what I suspected
[21:53] <juxta> so basically all the small dsl players were forced to follow bell's pricing
[21:53] <natrium42> yeah
[21:54] <natrium42> do you have a cap?
[21:54] Action: natrium42 's is 125 GB with $1.25 per extra GB
[21:54] <natrium42> 25/1 speed
[21:54] <juxta> yes, caps in australia are normal
[21:55] <juxta> i think mine is 240GB
[21:55] <juxta> I don't get billed overages though
[21:55] <juxta> my speed just throttles if I go over
[21:55] <juxta> to 512k I think
[21:56] <juxta> I can buy extra data if I want though, in blocks of 2-50gb
[21:56] <juxta> recently we've had some good competition here which has spurred lower prices and larger caps
[21:57] <natrium42> competition ftw
[21:57] <griffonbot> Received email: Ed Moore <eam52@cam.ac.uk> "Re: [UKHAS] detect balloon burst?"
[21:57] <juxta> in the past we had some good deals, but restricted to areas in which smaller players had their own DSL infrastructure - our national telco owns mostly everything
[21:57] <natrium42> canada has very few and very big players
[21:57] <juxta> yeah
[21:57] <juxta> we really only have 2 big players here
[21:58] <juxta> and even then the second one is very small in comparison to Telstra, the largest carrier
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[22:01] <juxta> hi Gillerire
[22:02] <MrCraig> hey if any of you have blogs or tweet your ukhas related projects could you please IM urls or twitter names my way - thanks
[22:03] <Gillerire> heya juxta
[22:03] <juxta> couldnt help but notice your hostname - do I know you? :)
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[22:18] <mattltm> Does the UKHAS have an "oficial" membership?
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[22:19] <juxta> yes, but the initiation rite is horribly difficult
[22:19] <MrCraig> as difficult as the mailing list?
[22:20] <juxta> (not really - there's no official membership so to speak) :)
[22:20] <DanielRichman> http://ukhas.org.uk/ukhas:members -- it's informal
[22:21] <jonsowman> very
[22:21] <jonsowman> DanielRichman: get anywhere with why the pred binary is segfaulting?
[22:21] Dan-K2VOL1 (~Adium@74-143-44-42.static.insightbb.com) joined #highaltitude.
[22:21] <mattltm> Great. Sign me up and I'll go get greased up for the initiation...
[22:22] <DanielRichman> mattltm: create yourself a wiki account; everyone's free to add themselves
[22:22] <DanielRichman> jonsowman: I lost my reproducable test case. It would appear to be dodgy wind data files
[22:22] <jonsowman> okay
[22:22] <DanielRichman> I'm guessing - the pred binary assumes that they're fine
[22:22] <jonsowman> well thanks for investigating a little
[22:22] <jonsowman> :)
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[22:23] <mattltm> Thanks Daniel :)
[22:23] <jonsowman> it's something I should really do at some point
[22:23] <DanielRichman> I pastebinned the code that segfaults- it seems clear why that would maek it segfault
[22:23] <DanielRichman> it dereferences something that it assumes exists
[22:23] <jonsowman> yeah
[22:23] <jonsowman> makes sense
[22:23] <jonsowman> that it segfaults, I mean
[22:24] <DanielRichman> http://pastie.org/1522206 http://pastie.org/1522216
[22:25] <DanielRichman> jonsowman: ^^
[22:25] <DanielRichman> symptoms are a partial or empty flight.csv yet the predictor frontend thinking pred has run
[22:25] <DanielRichman> do you check the exit code>?
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[22:26] <jonsowman> don't think so, I can't remember much off the top of my head
[22:26] <DanielRichman> jonsowman: are you playing with the predictor now?
[22:27] <griffonbot> Received email: "Matthew Beddow" <matt.beddow@gmail.com> "RE: [UKHAS] Re: ITV Daybreak - Students in Space"
[22:27] <jonsowman> DanielRichman: nope. I will tomorrow
[22:27] <jonsowman> I can't bring myself to do any more software work today
[22:27] <DanielRichman> jonsowman: OK. I think truncating a wind data file to half its original size while keeping the first half of the data might do it
[22:27] <DanielRichman> can't test right now
[22:29] <jonsowman> okay :) will give that a go
[22:30] <MrCraig> bed time for me - goodnight all.
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[22:41] <DanielRichman> jonsowman: actually- I think it'd probably crash if you binned the whole gfs file apart from the header; there's no assurance that it will try and use the last half of the file.
[22:41] <DanielRichman> let me know if it works ;)
[22:41] <jonsowman> will do :)
[22:43] <natrium42> who works, me?
[22:43] <natrium42> oh that
[22:43] <natrium42> :P
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[22:45] <Laurenceb_> X11 connection rejected because of wrong authentication.
[22:45] <Laurenceb_> what could cause that?
[22:45] <lindi-> Laurenceb_: what are you trying to do?
[22:46] <Laurenceb_> ssh into a remote desktop
[22:46] <Laurenceb_> this was working ~5 minutes ago :S
[22:47] <lindi-> Laurenceb_: so what do you exactly do?
[22:47] <Laurenceb_> ok, e.g. gedit <file>
[22:47] <Laurenceb_> after ssh -X ip user@addresss
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[22:49] <lindi-> Laurenceb_: echo $DISPLAY; xdpyinfo; xauth list; ssh -X user@address 'echo $DISPLAY; xdpyinfo'
[22:50] <lindi-> Laurenceb_: echo $DISPLAY; xdpyinfo; xauth list; ssh -X user@address 'echo $DISPLAY; xauth list; xdpyinfo'
[22:50] <lindi-> Laurenceb_: that should show the relevant information
[22:50] <Laurenceb_> ok
[22:50] <lindi-> to figure out the problem
[22:53] <Nigey> hmm, are LiPo's ok for high altitude temps?
[22:54] <jonsowman> Nigey: not great
[22:54] <jonsowman> capacity drops significantly as temp falls
[22:54] <Nigey> ahh dam, better stick with the original plan of the energizer lithium's
[22:54] <jonsowman> they are usually a good bet
[22:55] <Nigey> was going to power the gps on its own lipo seeing as i have 2 of them lying around now
[22:55] <jonsowman> a few LiPos have been flown (CUSF badgercub, forex)
[22:55] <jonsowman> but you need to anticipate the drop in capacity and make sure that's acceptable
[22:55] <jonsowman> I'd stick with Lis, they have proven capacity and terminal voltage stability with temperature
[22:55] <Nigey> yeah, i checked the gps spec sheet and it doesnt perform to well if the drop is much below 3.0v so maybe play it safe with the alternative
[22:56] <jonsowman> you don't want your GPS dying due to undervolting
[22:56] <jonsowman> indeed
[22:56] <Nigey> i've put off the pico launch for the time being
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[23:01] Nick change: Nigey -> NigeyS
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[23:06] <NigeyS> hi LazyLeopard
[23:07] <LazyLeopard> Hiya
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[23:07] <mattltm> Has anyone made a powered antenna tracker for HAB's?
[23:07] Action: LazyLeopard checks the weather forecast...
[23:07] <NigeyS> LazyLeopard, wind and rain for the next 3 days..lol
[23:07] <DanielRichman> mattltm: yup; it's called the track-o-tron I think
[23:08] <DanielRichman> a CUSF creation
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[23:08] <mattltm> Ahh..
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[23:08] Nick change: Gnea_ -> Gnea
[23:08] <LazyLeopard> mattltm: I've certainly heard of folks using various arrangements primarily intended for satellite work.
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[23:09] <mattltm> I was thinking about having a go at building one.
[23:09] <mattltm> Can't find any links for the track-o-tron
[23:10] <fsphil> I was looking at motors the other day, thinking of something similar
[23:10] <mattltm> Servicity
[23:10] <mattltm> Ops...
[23:10] <mattltm> servocity
[23:11] <DanielRichman> mattltm: ask one of the CUSF guys. I can't find a wiki page on it either but they might have some info
[23:11] <mattltm> Some nice pan and tilt mounts
[23:12] <mattltm> Who are the CUSF guys on here?
[23:12] <DanielRichman> mattltm: Randomskk, jonsowman, eroomde
[23:12] <DanielRichman> (gnite; I'm off now)
[23:12] <jonsowman> hi mattltm
[23:12] <jonsowman> see you DanielRichman
[23:12] <DanielRichman> ((apologies for mass hilight :P))
[23:12] <jonsowman> thanks for your help
[23:13] <mattltm> Thanks Daniel
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[00:00] --- Fri Feb 4 2011